source dynlibutils.tcl

dynlibload ns_tools_extensions ../src/.libs

# Usage: ns-tools-extensions-poisson-randvar-sample.tcl [replication number]
if {$argc > 1} {
    puts "Usage: ns ns-tools-extensions-poisson-randvar-sample.tcl \[replication number\]"
    exit
}
set run 1
if {$argc == 1} {
    set run [lindex $argv 0]
}
if {$run < 1} {
    set run 1
}

# seed the default RNG
global defaultRNG
$defaultRNG seed 9999
# create the RNGs and set them to the correct substream
set arrivalRNG [new RNG]
set sizeRNG [new RNG]
for {set j 1} {$j < $run} {incr j} {
    $arrivalRNG next-substream
    $sizeRNG next-substream
}
# arrival_ is a poisson random variable describing the time
# between consecutive packet arrivals
set arrival_ [new RandomVariable/Poisson]
$arrival_ set avg_ 75
$arrival_ use-rng $arrivalRNG
# size_ is a uniform random variable describing packet sizes
set size_ [new RandomVariable/Uniform]
$size_ set min_ 100
$size_ set max_ 5000
$size_ use-rng $sizeRNG
# print the first 5 arrival times and sizes
for {set j 0} {$j < 10} {incr j} {
    puts [format "%-8.3f %-4d" [$arrival_ value] \
        [expr round([$size_ value])]]
}

